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Commit | Line | Data |
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ef51244a | 1 | void readDigits(Int_t evNumber=1) |
2 | { | |
3 | ||
4 | // Dynamically link some shared libs | |
5 | if (gClassTable->GetID("AliRun") < 0) { | |
6 | gROOT->LoadMacro("loadlibs.C"); | |
7 | loadlibs(); | |
8 | } | |
9 | ||
10 | // Connect the Root Galice file containing Geometry, Kine and Hits | |
11 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root"); | |
12 | //TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root"); | |
13 | if (!file) file = new TFile("galice.root","UPDATE"); | |
14 | ||
15 | // Get AliRun object from file or create it if not on file | |
16 | if (!gAlice) { | |
17 | gAlice = (AliRun*)file->Get("gAlice"); | |
18 | if (gAlice) printf("AliRun object found on file\n"); | |
19 | if (!gAlice) gAlice = new AliRun("gAlice","Alice test program"); | |
20 | } | |
21 | char nameTD[8],nameTR[8]; | |
22 | ||
23 | TH1F *hTimediff = new TH1F("hTimediff","Time difference",100,0,256); | |
24 | TH1F *hTimePs = new TH1F("hTimePs","Time in Ps",100,-2000,2000); | |
25 | ||
26 | digits = new AliSTARTdigit(); | |
27 | TBranch *bd; | |
28 | ||
29 | ||
30 | // Event ------------------------- LOOP | |
31 | for (j=0; j<evNumber; j++){ | |
32 | sprintf(nameTD,"TreeD%d",j); | |
33 | printf("%s\n",nameTD); | |
34 | TTree *TD = (TTree*)gDirectory->Get(nameTD); | |
35 | bd = TD->GetBranch("START"); | |
36 | bd->SetAddress(&digits); | |
37 | bd->GetEvent(0); | |
38 | // printf(" Digits: %d \n ",digits->GetTime()); | |
39 | ||
40 | printf("time %d\n",digits->GetTime()); | |
41 | ||
42 | if(digits->GetTime()!=999999){ | |
43 | Int_t timediff = digits->GetTime(); | |
44 | Double_t timePs=(timediff-128)*10.; // time in Ps channel_width =10ps | |
45 | // cout<<"timediff "<<timediff<<" timePs "<<timePs<<endl; | |
46 | hTimediff->Fill(timediff); | |
47 | hTimePs->Fill(timePs); | |
48 | } | |
49 | } | |
50 | ||
51 | Hfile = new TFile("figs.root","UPDATE","Histograms for STASRT digits"); | |
52 | printf("Writting histograms to root file \n"); | |
53 | Hfile->cd(); | |
54 | //Create a canvas, set the view range, show histograms | |
55 | gStyle->SetOptStat(111111); | |
56 | TCanvas *c1 = new TCanvas("c1","Alice START Time ",400,10,600,600); | |
57 | hTimePs->SetXTitle("arriving time, ps"); | |
58 | hTimePs->SetYTitle("number of events"); | |
59 | hTimePs->Write(); | |
60 | ||
61 | ||
62 | ||
63 | } // end of macro | |
64 | ||
65 | ||
66 | ||
67 |